2 2
2
1 1
5
4
3

Next: Model setting without an Up: Alternative formulation Previous: Alternative formulation   Contents   Index

Multi-Region Approach

In general, this methodology allows working with any number of regions. This computational model consists of three parts (regions). We consider following regions:

 

  • rotor is rotational part of the model, fluid is flowing over rotating turbine wheel
  • 2 stators are static parts of the model, fluid is flowing through
    • spiral
    • drafttube
francis turbine spiral geometry openfoam

[spiral (stator)]

francis turbine rotor geometry openfoam
francis turbine drafttube geometry openfoam

[drafttube (stator)]

Figure: Three regions of computational model: spiral; rotor; drafttube;

During simulation, each region is computed individually and each region communicates with other regions through special boundary conditions.

OpenFOAM Training by CFD Support,   CFD SUPPORT,   info@cfdsupport.com    +420 212 243 883      © CFD support, s.r.o., Sokolovská 270/201, 190 00 Praha 9, Czech Republic